[[Property:title|Message Box]] [[Property:weight|-11]] [[Property:uuid|cbc37679-43b0-99b8-b8c7-1be8be49882e]]

[[Image:hello-world|Hello world form]]
[[Image:message-box|Hello world form]]

==Compiling== To compile the example: # Launch EiffelStudio. # Click '''Add project''' # Browse to ''$ISE_EIFFEL\examples\dotnet\winforms\hello_world_dlg\'' # Choose ''hello_world_dlg.ecf'' # Choose the location where the project will be compiled, by default the same directory containing the configuration file. # Click '''Open'''. ==Running== After launching the application, you will see a window displayed with a similar appearance to the one above. Click on the BUTTON "Click Me!" and a message box will appear with the text that you have entered in the TEXT_BOX. ==Under the Hood== The application shows how to use the very useful MESSAGE_BOX control. An event ( EVENT_HANDLER) is associated to a control (here to the BUTTON). So the line


            my_button.add_click (create {EVENT_HANDLER}.make (Current, $on_my_button_clicked ))

associates a click to my_button to the feature on_my_button_clicked. So every time the BUTTON my_button is clicked, the feature on_my_button_clicked is executed. The feature my_button_clicked displays a MESSAGE_BOX


            {WINFORMS_MESSAGE_BOX}.show (msg)

with the text contained in TEXT_BOX


            msg := "Text is : '"
            msg.append (my_text_box.text)
            msg.append ("'")

This sample uses the following classes: * FORM * BUTTON * TEXT_BOX * EVENT_HANDLER ==Notes== This sample is translated from the example located in the QuickStart\winforms\samples\accessible subdirectory of the .NET Framework SDK samples directory of Microsoft Visual Studio.NET.